列表视图中的自动序列号 [英] auto serial number in listview

问题描述

在listview中设置自动序列号的问题，可以在删除ex时添加序列号。序列号不喜欢1 2 3 4 5，如果我删除序列号为3的行，序列号4 5不会自动转换为3和4

  private   void  btn_Addtocart_Click（ object  sender，EventArgs e）
 {
  try  
 {
 < span class =code-keyword> if （txtProductName.Text ==   ）
 {
 MessageBox.Show（ 请检索产品名称，< span class =code-string> 输入错误，MessageBoxButtons.OK，MessageBoxIcon.Error）; 
  return ; 
} 
  if （txtSaleQty.Text ==  ）
 {
 MessageBox.Show（  Please输入销售数量， 输入错误，MessageBoxButtons.OK，MessageBoxIcon 。错误）; 
 txtSaleQty.Focus（）; 
  return ; 
} 
 count = ListView1.Items.Count +  1 ; 
  int  SaleQty = Convert.ToInt32（txtSaleQty.Text）; 
 ListViewItem lst =  new  ListViewItem（count.ToString（））; 
  if （ListView1.Items.Count ==  0 ）
 {
 lst.SubItems.Add（txtProductName.Text）; 
 lst.SubItems.Add（Company.Text）; 
 lst.SubItems.Add（txtPrice.Text）; 
 lst.SubItems.Add（txtSaleQty.Text）; 
 lst.SubItems.Add（txtTotalAmount.Text）; 
 ListView1.Items.Add（lst）; 
 Company.Text =  ; 
 txtProductName.Text =  ; 
 txtPrice.Text =  ; 
 txtAvailableQty.Text =  ; 
 txtSaleQty.Text =  ; 
 txtTotalAmount.Text =  ; 
 textBox1.Text =  ; 
 txtSubTotal.Text = subtot（）。ToString（）; 
} 
  else  
 {
 lst.SubItems.Add（txtProductName.Text）; 
 lst.SubItems.Add（Company.Text）; 
 lst.SubItems.Add（txtPrice.Text）; 
 lst.SubItems.Add（txtSaleQty.Text）; 
 lst.SubItems.Add（txtTotalAmount.Text）; 
 ListView1.Items.Add（lst）; 
 Company.Text =  ; 
 txtProductName.Text =  ; 
 txtPrice.Text =  ; 
 txtAvailableQty.Text =  ; 
 txtSaleQty.Text =  ; 
 txtTotalAmount.Text =  ; 
 textBox1.Text =  ; 
 txtSubTotal.Text = subtot（）。ToString（）; 
 
} 
 ListView1.Sort（）; 
 ListView1.Refresh（）; 
 ListView1.Update（）; 
} 
 
  catch （Exception ex）
 {
 MessageBox.Show（ex.Message，< span class =code-string> 错误，MessageBoxButtons.OK，MessageBoxIcon.Error）; 
} 
} 
 
 
 
  private   void  removeFromListToolStripMenuItem_Click（ object  sender，EventArgs e）
 {
 
  foreach （ListViewItem listviewitem  in  ListView1.SelectedItems）
 {
 listviewitem.Remove（）; 
} 
} 

[edit]已添加代码块 - OriginalGriff [/ edit]

解决方案

请参阅：



http://www.devcurry.com/2010/12/auto-generate-row-number-in-aspnet.html [ ^ ]

problem setting automatic serial number in listview, can add the serial number but while deleting ex. serial no like 1 2 3 4 5, if i delete the row having serial no 3, serial number 4 5 doesn't convert into 3 and 4 automatically

private void btn_Addtocart_Click(object sender, EventArgs e)
        {
            try
            {
                if (txtProductName.Text == "")
                {
                    MessageBox.Show("Please retrieve product name", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
                if (txtSaleQty.Text == "")
                {
                    MessageBox.Show("Please enter no. of sale quantity", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    txtSaleQty.Focus();
                    return;
                }
                count = ListView1.Items.Count + 1;
                int SaleQty = Convert.ToInt32(txtSaleQty.Text);
                ListViewItem lst = new ListViewItem(count.ToString());
                if (ListView1.Items.Count == 0)
                {
                    lst.SubItems.Add(txtProductName.Text);
                    lst.SubItems.Add(Company.Text);
                    lst.SubItems.Add(txtPrice.Text);
                    lst.SubItems.Add(txtSaleQty.Text);
                    lst.SubItems.Add(txtTotalAmount.Text);
                    ListView1.Items.Add(lst);
                    Company.Text = "";
                    txtProductName.Text = "";
                    txtPrice.Text = "";
                    txtAvailableQty.Text = "";
                    txtSaleQty.Text = "";
                    txtTotalAmount.Text = "";
                    textBox1.Text = "";
                    txtSubTotal.Text = subtot().ToString();
                }
                else
                {
                    lst.SubItems.Add(txtProductName.Text);
                    lst.SubItems.Add(Company.Text);
                    lst.SubItems.Add(txtPrice.Text);
                    lst.SubItems.Add(txtSaleQty.Text);
                    lst.SubItems.Add(txtTotalAmount.Text);
                    ListView1.Items.Add(lst);
                    Company.Text = "";
                    txtProductName.Text = "";
                    txtPrice.Text = "";
                    txtAvailableQty.Text = "";
                    txtSaleQty.Text = "";
                    txtTotalAmount.Text = "";
                    textBox1.Text = "";
                    txtSubTotal.Text = subtot().ToString();

                }
                ListView1.Sort();
                ListView1.Refresh();
                ListView1.Update();
            }

            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }



  private void removeFromListToolStripMenuItem_Click(object sender, EventArgs e)
        {
           
            foreach (ListViewItem listviewitem in ListView1.SelectedItems)
            {
                listviewitem.Remove();
            }                
	    }

[edit]Code block added - OriginalGriff[/edit]

解决方案

Please see :

http://www.devcurry.com/2010/12/auto-generate-row-number-in-aspnet.html[^]

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